Fix ynhpanel.js access in unprotected case

[Josue-T]

Problem

To reproduce this bug you need this :

• Have to independant domain : by example :
  • a.tld (as the main yunohost domain)
  • b.tld
• Install an app on the "root" of b.tld wich use the "unprotected_uri" and which show the "Yunohost tile".
• Logon in sso on a.tld.
• Go on the app which is in b.tld/.
• See that you don't see the "Yunohost tile".

This happen because SSOwat don't detect any cookies for b.tld, so it considere the client as not authenticated.

Solution

Force SSOwat to reauthenticate the user for b.tld by a redirection. Note that process already work when the app is not installed in the root of the domain.

[alexAubin]

Wow that looks quite technical and must have been painful to debug x_x

Thanks a lot for this, I'll have a look at some point